WO2013150929A1 - Disjoncteur à gaz - Google Patents

Disjoncteur à gaz Download PDF

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Publication number
WO2013150929A1
WO2013150929A1 PCT/JP2013/058897 JP2013058897W WO2013150929A1 WO 2013150929 A1 WO2013150929 A1 WO 2013150929A1 JP 2013058897 W JP2013058897 W JP 2013058897W WO 2013150929 A1 WO2013150929 A1 WO 2013150929A1
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WO
WIPO (PCT)
Prior art keywords
magnetic pole
circuit breaker
gas circuit
winding
contact
Prior art date
Application number
PCT/JP2013/058897
Other languages
English (en)
Japanese (ja)
Inventor
一 浦井
康明 青山
裕明 橋本
勝彦 白石
加藤　達朗
歩 森田
六戸　敏昭
陽一 大下
Original Assignee
株式会社 日立製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社 日立製作所 filed Critical 株式会社 日立製作所
Priority to JP2014509116A priority Critical patent/JP5775966B2/ja
Priority to KR1020147027868A priority patent/KR20140138840A/ko
Priority to CN201380018100.0A priority patent/CN104205280A/zh
Priority to US14/390,594 priority patent/US20150091677A1/en
Priority to EP13771948.0A priority patent/EP2835811A4/fr
Publication of WO2013150929A1 publication Critical patent/WO2013150929A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/32—Electromagnetic mechanisms having permanently magnetised part
    • H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/36—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/128—Manual release or trip mechanisms, e.g. for test purposes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • H01H2003/268—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor using a linear motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/28—Power arrangements internal to the switch for operating the driving mechanism
    • H01H33/40—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator

Definitions

  • the present invention relates to a gas circuit breaker, and more particularly to an electrically driven gas circuit breaker that is operated electrically to cut off a high voltage.
  • an operating device for operating the gas circuit breaker a spring operating device that obtains the operating force by releasing the spring force stored in the operating spring, and an air pressure that uses the air pressure or hydraulic pressure to obtain the operating force
  • an operation device and a hydraulic operation device are known.
  • the spring operating device is excellent in low operating force, maintainability and economy, and the pneumatic operating device is easy to handle and obtains high operating force. It is characterized by high operating force with low noise.
  • Patent Document 1 discloses an actuator structure that supplies a current to a linearly movable coil, and uses a repulsive force against a magnetic field force generated from a fixed cylindrical permanent magnet to linearly connect an insulating rod connected to the coil.
  • the circuit breaker configuration to be moved is described.
  • Patent Documents 2 and 3 there is a technique described in Patent Documents 2 and 3 as a technique different from the circuit breaker.
  • the magnetic pole teeth arranged to sandwich and hold the permanent magnet arranged on the mover, the core continuously connecting the magnetic pole teeth sandwiching and holding the magnetic pole, and the plurality of cores are wound together.
  • the armature winding and the mover in which the magnetic poles of the magnet are arranged alternately on the front and back, the magnetic pole teeth arranged so as to sandwich and hold the permanent magnet, and the core that continuously connects the magnetic pole teeth holding the magnet A state is described in which a plurality of armature cores are arranged along the longitudinal direction of the mover.
  • Patent Documents 2 and 3 are not intended to be used for circuit breakers in the first place.
  • an object of the present invention is to provide a gas circuit breaker that improves reliability.
  • a gas circuit breaker includes a stationary contact, a movable contact that contacts and separates from the stationary contact, and the stationary contact and the movable contact.
  • a gas circuit breaker comprising: an insulating tank whose inside is sealed with an insulating gas; and an operating device for generating a driving force for operating the movable contact, wherein the operating device comprises: It is characterized by comprising a mover for arranging a permanent magnet or a magnetic body in a direction for generating the driving force of the operating device, and a magnetic pole arranged opposite to the mover and having a winding.
  • FIG. 10 is a perspective view for explaining an actuator according to a third embodiment.
  • FIG. 10 is a diagram illustrating an actuator according to a third embodiment. It is sectional drawing of the circuit breaker which concerns on Example 3.
  • FIG. 10 is a diagram illustrating a control system according to a third embodiment.
  • FIG. 10 is a schematic perspective view of an actuator according to Example 4.
  • FIG. It is a front view of FIG. It is a structural example of the actuator which made the needle
  • FIG. 9 is a configuration diagram in which three rows of actuators according to a fifth embodiment are arranged. It is the block diagram which arranged the actuator which concerns on Example 5 in 3 rows, and is a figure at the time of using a three-phase inverter for a power supply.
  • FIG. 10 is a configuration diagram in which three rows of actuators according to Example 5 are arranged, and each movable element is mechanically connected.
  • FIG. 10 is a configuration diagram in which three rows of actuators according to Example 5 are arranged, and each movable element is mechanically connected.
  • FIG. 10 is a plan view showing a loading position of a position holding mechanism according to a sixth embodiment.
  • FIG. 10 is a plan view illustrating a blocking position of a position holding mechanism according to a sixth embodiment. It is a top view which shows the intermediate position where the length of the compression spring which concerns on Example 6 becomes the minimum. It is the figure which connected the mechanical operation means of the circuit breaker to the electromagnetic actuator which concerns on Example 7.
  • FIG. It is a figure which expands and displays the mechanical operation means connected to an electromagnetic actuator.
  • FIG. 1 is a configuration example of a circuit breaker showing an open state (a) and a closed state (b).
  • the circuit breaker according to the present embodiment is broadly divided into a breaking part for breaking the accident current and an operation part for operating the breaking part.
  • the blocking part is movable in a sealed metal container 1 filled with SF 6 gas inside, a fixed side electrode (fixed side contact) 3 fixed to an insulating support spacer 2 provided at the end of the sealed metal container 1 and movable Side electrode 4 and movable electrode (movable side contactor) 6, nozzle 5 provided between both electrodes at the tip of movable electrode 6, and insulation support connected to operation side and connected to movable side electrode 4
  • It has a cylinder 7 and a high voltage conductor 8 that is connected to the movable electrode 4 and serves as a main circuit conductor that constitutes a part of the main circuit.
  • the current can be turned on and off by opening and closing it.
  • a current transformer 51 is provided that functions as a current detector for detecting a current flowing through the high voltage conductor 8.
  • An insulating rod 81 connected to the operation unit side is disposed in the insulating support cylinder 7.
  • the operating unit is provided with an actuator (operator) 100 in an operating unit case 61 provided adjacent to the sealed metal container 1, and a movable element 23 that moves linearly is disposed inside the actuator 100.
  • the mover 23 is connected to the insulating rod 81 through a linear seal portion 62 provided so that the hermetic metal container 1 can be driven while being kept airtight.
  • the insulating rod 81 is connected to the movable electrode 6. That is, it becomes possible to operate the movable electrode 6 in the blocking part through the operation of the movable element 23.
  • the actuator 100 is electrically connected to the power supply unit 71 through a sealing terminal 90 provided in a state where an insulating gas is sealed on the surface of the sealed metal container 1.
  • the power supply unit 71 is further connected to the control unit 72 so as to receive a command from the control unit 72.
  • the current value detected by the current transformer 51 is input to the control unit 72.
  • the power supply unit 71 and the control unit 72 function as a control mechanism that changes the amount and phase of the current supplied to the winding 41 of the actuator 100 described below according to the current value detected by the current transformer 51.
  • the structure of the actuator will be described with reference to FIGS.
  • the actuator 100 is configured by arranging a mover 23 composed of a magnet fixing member 22 that sandwiches and supports the permanent magnet 21 and the permanent magnet 21.
  • the permanent magnet 21 is magnetized in the Y-axis direction (vertical direction in FIG. 2), and alternately magnetized for each adjacent magnet.
  • the magnet fixing member 22 is preferably made of a nonmagnetic material such as a nonmagnetic stainless alloy, aluminum alloy, or resin material, but is not limited thereto.
  • the actuator 100 is attached with mechanical parts in order to maintain a distance between the permanent magnet 21 and the first magnetic pole 11 and the second magnetic pole 12.
  • linear guides, roller bearings, cam followers, thrust bearings, and the like are preferable, but the present invention is not limited to this as long as the distance between the permanent magnet 21 and the first magnetic pole 11 and the second magnetic pole 12 can be maintained.
  • an attractive force (force in the Y-axis direction) is generated between the permanent magnet 21 and the first magnetic pole 11 and the second magnetic pole 12.
  • the attractive force generated in the permanent magnet 21 and the first magnetic pole 11 and the attractive force generated in the permanent magnet 21 and the second magnetic pole 12 are opposite to each other, so that the forces are offset and attracted.
  • the power is reduced. Therefore, the mechanism for holding the mover 23 can be simplified, and the mass of the movable body including the mover 23 can be reduced. Since the mass of the movable body can be reduced, high acceleration driving and high response driving can be realized. Since the stator 14 and the permanent magnet 21 are relatively driven in the Z-axis direction (left-right direction in FIG.
  • the mover 23 including the permanent magnet 21 moves in the Z-axis direction by fixing the stator 14.
  • the mover 23 and move the stator 14 are reversed.
  • the force generated is a relative force generated between the two.
  • a current is passed through the winding 41 to generate a magnetic field, and a thrust according to the relative position of the stator 14 and the permanent magnet 21 can be generated. Also, by controlling the positional relationship between the stator 14 and the permanent magnet 21 and the phase and magnitude of the injected current, the magnitude and direction of the thrust can be adjusted.
  • the operation control of the mover 23 is performed by supplying a current in the actuator 100 from the power supply unit 71 according to the case where the opening command and the closing command are input to the control unit 72, so This is done by converting to the driving force.
  • FIG. 3 shows a perspective view of the structure of one unit of the actuator 100 described above. 3 to 5, the first magnetic pole 11, the second magnetic pole 12, the magnetic body 13 connecting the first magnetic pole 11 and the second magnetic pole 12, and the winding 41 are included.
  • a mover having a permanent magnet 21 is configured to move relative to the stator 14 in the Z-axis direction. As shown in FIG. 2, the mover 23 mechanically connects the plurality of permanent magnets 21 in the direction of the operation axis of the movable contact by a magnet fixing member or the like while alternately inverting the N pole and the S pole.
  • the first magnetic pole 11 and the second magnetic pole 12 of the stator 14 are arranged so as to face these N pole and S pole of the mover.
  • the magnetic body 13 connecting the first magnetic pole 11 and the second magnetic pole 12 is divided in the Y-axis direction.
  • winding 41 improves.
  • the first magnetic pole 11 and the second magnetic pole 12 can be adjusted while being shifted in the Z-axis direction.
  • the thrust can be increased by changing the magnetization direction of the permanent magnet.
  • the mover by configuring the mover to be sandwiched between the first and second magnetic poles, the attractive force between the permanent magnet and the magnetic pole is small, and the drive direction (Z-axis direction) ) And vertical direction (X-axis direction and Y-axis direction) are extremely small. That is, when applied to a circuit breaker, even if the mover that transmits the operating force passes through the linear seal portion 62, the deformation of the linear seal portion 62 is small, so that the mechanical burden on the seal portion is reduced.
  • FIG. 4 is a front view of FIG. FIG. 5 is a diagram in which the windings are omitted from FIG. 4 so that the relationship between the first magnetic pole 11, the second magnetic pole 12, and the magnetic material connecting them can be easily understood.
  • the winding 41 is wound around each of the first magnetic pole 11 and the second magnetic pole 12 so as to sandwich the permanent magnet 21 therebetween. Since the winding 41 and the permanent magnet 21 are arranged facing each other, the magnetic flux generated in the winding 41 acts on the permanent magnet 21 efficiently. Therefore, the actuator can be reduced in size and weight. Further, the magnetic circuit is closed by the first magnetic pole 11, the second magnetic pole 12, and the magnetic body 13 connecting the first magnetic pole and the second magnetic pole, and the path of the magnetic circuit can be shortened. As a result, a large thrust can be generated. Moreover, since the periphery of the permanent magnet 21 is covered with a magnetic material, the leakage magnetic flux to the outside can be reduced, and the influence on surrounding devices can be reduced.
  • the gas circuit breaker according to the present embodiment configured as described above cuts off the current from the closed state in FIG. 1A to the open state in FIG. 1B. At that time, the arc plasma is extinguished by blowing SF 6 gas having arc extinguishing performance on the arc generated in the interrupting portion, and the accident current is interrupted.
  • the breaker is equipped with a mover that arranges a permanent magnet in a direction in which the driving force of the actuator is generated, and an actuator that is disposed opposite to the mover and has a magnetic pole having a winding.
  • a magnetic body refers to a member that receives an attractive force from a magnet, and representative members include iron and silicon steel plates.
  • the gas section of the shut-off part and the operation part are separated, and the operating device is driven via the linear seal part 62.
  • the shut-off part and the operation part are made the same gas compartment, and the operation part is also shut off. It may be in a state filled with the same high pressure SF 6 gas as the part.
  • the operation device case 61 of the operation section is sealed from the outside (atmosphere). There are cases where it is sealed and cases where it is not sealed.
  • the controller case 61 is filled with dry air, nitrogen, or SF 6 gas at atmospheric pressure.
  • the operation unit is hermetically sealed, it is less affected by the external environment, and factors that degrade performance such as humidity, rainwater, and insects can be eliminated, thus providing a highly reliable operation unit.
  • it since it is difficult to inspect the inside when it is sealed, it is difficult to detect an internal abnormality factor in the event of a malfunction in the operation unit or to perform a simple internal maintenance inspection. If priority is given to the ease of such internal inspection, it is not necessary to seal the actuator case.
  • the actuator 100 is configured by two stators 14
  • the number of stators is not limited to two. Any number of stators can be driven as a breaker operating device. On the other hand, by increasing the number, it becomes possible to give a large propulsive force in proportion to the number.
  • the gas circuit breaker according to the present embodiment includes a fixed side electrode 3 serving as a fixed side contact in an insulating container 9 such as an insulator made of an insulator, and a fixed side electrode 3 in contact with and separated from the movable side.
  • a movable electrode 6 serving as a contact and a nozzle 5 provided at the tip of the movable electrode 6 on the fixed electrode 3 side are provided, and SF 6 gas is enclosed as an insulating gas in the insulating container 9.
  • gases can be used as the insulating gas. Specific examples include a mixed gas of SF 6 and N 2 and CF 4 , and an SF 6 gas substitute gas such as CO 2 gas.
  • the other insulating container 10 that stores the operation unit is attached to the lower side of the insulating container 9 that stores the blocking unit.
  • the insulating container 10 there are an actuator 100, a mover 23 protruding from the actuator toward the blocking portion, an insulating rod 81 provided at the tip of the mover 23 on the blocking portion side, the insulating rod 81 and the movable electrode 6.
  • an insulating gas similar to that in the insulating container 9 is sealed in the insulating container 10.
  • the two insulating containers 9 and 10 are connected by a gas suction port 36, and a decomposition gas filter 38 is provided on the insulating container 9 side in the middle of the gas suction port 36.
  • the cracked gas filter 38 is covered with an umbrella 37 in the insulating container 9.
  • the actuator 100 is connected to the shut-off portion operation rod 62 (straight seal portion) via the insulating rod 81, and thrust is transmitted to the shut-off portion.
  • the actuator 100 is the linear actuator described in the first embodiment, and a description thereof is omitted here. Since the linear actuator can be configured to have a small outer periphery, it can be arranged in the insulating container 10. Therefore, a gas circuit breaker can be made small and an installation area can be made small compared with the conventional spring operating device.
  • the gas space 39 in the insulating container 9 of the shut-off part and the gas space 40 in the insulating container 10 of the operating part are gas spaces separated from each other by the shut-off part operating rod 62 (straight seal part) serving as a linear seal.
  • the shut-off part operating rod 62 straight seal part
  • powdery SF 6 gas decomposition products are generated by the arc generated at the upper shut-off portion.
  • the decomposition product accumulates on the lower surface in the insulating container 9.
  • the gas space 40 in which the operation part is accommodated and the shut-off part gas space 39 are set as separate gas sections, so that the operation part gas space is obtained. 40 does not contain decomposition products. Therefore, there is no fear of further increasing the sliding resistance.
  • the gas space may be communicated through a cracked gas filter.
  • FIG. 6 the case where it connects with the gas inlet 36 via the decomposition gas filter 38 is shown.
  • an umbrella 37 is provided at the gas inlet 36. By providing the umbrella 37 at the gas inlet port 36, it is possible to form a state in which the decomposition gas product does not enter the gas inlet port 36, and without entering the operation unit gas space 40, the decomposition product accumulates on the actuator and slides. Does not increase dynamic resistance.
  • a decomposition gas filter is also provided inside the umbrella 37 (on the gas suction port 36 side). Even if a decomposition product enters the gas suction port 36 through the gap of the umbrella 37, It is removed, and the decomposition product does not enter the operation portion gas space 40. Therefore, the risk of further increasing the sliding resistance can be reduced.
  • Example 3 will be described with reference to FIGS.
  • three units of actuators 100a, 100b, and 100c are arranged side by side in the Z-axis direction (the operation direction of the movable electrode 6).
  • One unit is the same as already described in the first embodiment, and a description thereof is omitted here.
  • the three units of actuators are arranged at positions that are electrically out of phase with respect to the permanent magnet 21. If one unit is one stator, the three-unit actuator is composed of three stators. Similarly, if one unit is N stators, the three-unit actuator is 3 ⁇ N (three It consists of a stator.
  • the actuator 100b has an electrical phase of 120 ° (or 60 °) and the actuator 100c has an electrical phase of 240 ° (or 120 °) with respect to the actuator 100a.
  • the actuator arrangement when a three-phase alternating current is passed through the winding 41 of each actuator, an operation similar to that of a three-phase linear motor can be realized.
  • the windings in each actuator can be injected with currents of different magnitudes or phases from the control mechanism.
  • U, V, and W three-phase currents supplied from one AC power source are supplied separately. In this case, there is no need to provide a plurality of power supplies, which is convenient.
  • there are options such as 3 ⁇ N sealing terminals as described above, or sharing the sealing terminals for the actuators through which the same current flows.
  • FIG. 8 shows a cross-sectional view of FIG.
  • a constant thrust can be generated regardless of the positional relationship between the permanent magnet 21 and the configuration using the plurality of actuators 200. Furthermore, it is possible to generate a braking force (damping force) by control, regenerate the electric power generated by the brake, and use electric energy efficiently. It is also possible to generate a braking force for decelerating in the actuator, so that a brake device such as a conventional hydraulic actuator or a dashpot of a spring operator can be dispensed with, and the circuit breaker can be downsized. Furthermore, since the number of parts of the apparatus is reduced, reliability and maintainability are improved.
  • FIG. 9 shows a state in which the plurality of actuators described in FIGS. 7 and 8 are applied to the gas circuit breaker.
  • the entire configuration has been described in the first embodiment, and a description of overlapping portions is omitted.
  • a position sensor 75 is provided connected to the actuator, and the position, speed and acceleration of the mover 23 and the insulating rod 81 are controlled by controlling the current supplied to the windings of the plurality of actuators. Can be finely controlled. Therefore, it is possible to control the opening / closing operation and the acceleration / deceleration pattern.
  • the control unit 72 corresponds to the protection control device 53 to which the measured values from the instrument transformer 52 and the current transformer 51 are sent, and the actuator control device 54.
  • the inverter 55 and the power supply changeover switch 56 correspond to the power supply unit 71.
  • the power storage unit 73 includes a charging device 59 and a capacitor 58.
  • the protection control device 53 in the control unit 72 receives current and voltage data from the current transformer 51 and the instrument transformer 52. However, when a system fault occurs or when an opening / closing command is received by an operator, protection is performed. A cutoff or closing command is transmitted from the control device 53 to the actuator control device 54.
  • the actuator control device 54 controls the inverter 55 to generate the thrust of the actuator 100.
  • a position sensor (not shown) is attached to the actuator 100, and the position information is transmitted to the actuator control device 54 to control the operation of the actuator.
  • an operation characteristic may be controlled from each measurement data using an acceleration sensor, a magnetic flux density sensor, or the like instead of the position sensor.
  • electrolytic capacitors with a large capacity are used as capacitors.
  • the capacitor is divided into a plurality of units 58a, 58b, and 58c, and the charge switching switch 57 and the power supply switching switch 56 are used to individually charge the capacitor as the power source and select the capacitor to be used during operation. ing.
  • the circuit breaker it is necessary to drive at a high speed in the breaking operation, and a large thrust is required due to the puffer reaction force.
  • the closing operation it may be 2 to 4 times as long as the blocking operation, and the thrust may be small. Therefore, the instantaneous power required for driving differs at the time of interruption and at the time of turning on.
  • the circuit breaker has a specification such as performing a series of operations of breaking-on-breaking without charging. In addition, a specification of on / off may be added. Even when such specifications are required, the expansion corresponding to the operation responsibilities can be facilitated by dividing the capacitor as in this embodiment. In actual operation, continuous operation is not always performed, and only the capacitor used for the operation needs to be charged, and the charging time can be shortened.
  • the actuator shown in the present embodiment has a configuration in which two actuators shown in FIG. 3 are stacked in the Y-axis direction. It is configured to penetrate the stator.
  • the windings 41 are arranged so as to oppose each other in the Y-axis direction so as to sandwich the permanent magnets 21 constituting the respective movers, and the outer sides of the movers are connected to the magnetic poles on which the magnetic bodies 13 are provided vertically. Constitute.
  • the stator when the Y-axis direction is the vertical direction, the stator includes the first magnetic pole 11 on the two upper permanent magnet side and the second magnetic magnet on the second lower permanent magnet side. It has the magnetic pole 12, the 3rd magnetic pole 15 provided between these magnetic poles, and the magnetic body 13 which connects each of these.
  • the actuators are arranged side by side in the Y-axis direction, and the Y-axis direction intermediate magnetic body 13 that connects the first magnetic pole 11, the second magnetic pole 12, and the third magnetic pole is used in common, thereby reducing the size of the actuator.
  • the configuration in which two actuators are arranged in the Y-axis direction has been described as an example.
  • the number and directions of the actuators are not limited to this configuration.
  • FIG. 12 shows a state where the contents described in FIG. 4 and FIG. 5 are replaced in two stages as described in FIG.
  • 13 and 14 describe another configuration in which two actuators are arranged in the Y-axis direction.
  • Two movers 23a and 23b arranged in the Y-axis direction are connected by a mover connecting part 24 so that both movers operate integrally.
  • each part of the actuator When the mover is driven, a reaction force proportional to the thrust is applied to each part of the actuator. Therefore, each part is deformed by the reaction force, and the electrical phase shift between the mover and the stator occurs.
  • the influence By fixing a plurality of stators and actuators, the influence can be reduced. In FIG. 13, each actuator is fixed to the fixed plate 30, and deformation of each part can be prevented.
  • FIG. 13 Although the example which prevents a deformation
  • spacers 31 are arranged between the respective stators and the actuators, so that deformation of each part can be reduced.
  • Specific examples of the method of joining the fixing plate 30 and the spacer 31 include bolt fastening, adhesive application, and welding, but other methods may be used.
  • a three-stage magnetic pole is used and a two-stage mover is sandwiched between them, so that a high output structure can be obtained.
  • Example 5 will be described with reference to FIGS. Descriptions of the components having the same functions as those already described are omitted here.
  • FIG. 15 shows a configuration in which three rows are connected in series. At this time, three actuators are arranged side by side in a direction perpendicular to the direction in which the actuator generates a driving force (the driving direction of the mover). In the actuator, some characteristic variations such as winding resistance and magnet magnetic flux may occur in manufacturing. This embodiment is for preventing such variations. According to the configuration shown as an example in the present embodiment, it is possible to prevent current non-uniformity due to characteristic variations of individual actuators, and three actuators can be operated simultaneously.
  • FIG. 16 shows a case where a three-phase inverter 210 is applied in place of the power source 209 shown in FIG. 15 and driven as a three-phase actuator.
  • the positional relationship between the magnet and the stator of each actuator 100 is different, as in FIG.
  • FIG. 17 shows a case where the mover 23a, the mover 23b, and the mover 23c of the three actuators are coupled by a mover connecting part 24 having rigidity.
  • the opening / closing operation can be performed at a plurality of timings (different timings depending on each insulating rod).
  • Example 6 will be described with reference to FIGS.
  • the position of the circuit breaker can be maintained by the embodiment shown in FIGS.
  • FIG. 18 shows a closing position
  • FIG. 19 shows a blocking position
  • FIG. 20 shows an intermediate position where the length of the compression spring 400 is minimum.
  • the link system 402 that couples the electromagnetic actuator 100 and the breaker 401 has a position 403 where the length is minimum (the position where the spring is compressed from the most natural length) as the breaker closing position and breaker position.
  • a compression spring 400 configured to be in between is coupled. That is, at the intermediate position where the length of the compression spring 400 is minimum, the compression spring 400 and the mover 23 are formed to be vertical.
  • the circuit breaker can hold the closing position or the breaking position against gravity, thrust by gas pressure, vibration from the outside, and the like.
  • the main frame 302 is fixed to a circuit breaker (not shown) (only the actuator side is shown in the figure, but the main frame 302 extends to the circuit breaker side),
  • the actuator 100 is fixed to this by bolt fastening or the like via a frame 301 for holding the actuator 100 provided on the frame 302.
  • the frame 302 is provided with a convex portion 303 for positioning, and positioning when the actuator 100 is fastened to the frame 302 becomes easy.
  • a block 308 is bolted to the frame 302 and connected to one end of the frame 302 (on the side of the manual handle described below). Note that the block 308 may be removed in the normal operation state of the circuit breaker (that is, when the circuit breaker is controlled by electric power instead of manual control). As shown in FIG.
  • a spindle 307 is connected to the block 308 through the penetrating portion in the operating direction of the blocking portion contact.
  • a male screw is formed on the outer peripheral surface of the spindle 307. Since an external thread is formed on the outer peripheral surface of the spindle 307 and a female thread is formed in the penetrating portion provided in the block 308, the manual handle 309 attached to one end of the spindle 307 is operated to rotate the spindle 307. As a result, the spindle 307 moves in the operating direction of the interrupter contact.
  • a disk-like member 306 is fixed to the other end of the spindle 307 by screw fastening or the like.
  • the end fitting 24a on the side opposite to the interrupting portion contact side is provided with a gap formed so that the disk-like member 306 can rotate.
  • the plate-like member 306 is inserted into the gap formed in the terminal fitting 24a, a support member 305 is provided, and the plate-like member 306 is rotatably supported between the support member 305 and the terminal fitting 24a.
  • the support member 305 is formed in a substantially semicircular shape, and is fastened to the terminal fitting 24a with a bolt (not shown).
  • the rod 304a of the link system 304 is connected to the terminal metal fitting 24b on the contact part side of the actuator 100.
  • One end of the rod 304a on the contact side of the interrupting portion is connected to the hinge 304c via a nut 304b.
  • the hinge 304c is connected to the link 304d by pin fastening.
  • the link system 304 is connected to the interrupting part contact through an insulating operation rod in the interrupting part (not shown). As a result, the breaker contact and the actuator 100 are configured in a substantially straight line.
  • the handle 309 When the opening operation of the breaker contact is mechanically performed, the handle 309 is rotated in the direction in which the spindle 307 opens in the state shown in FIG. As a result, the plate-like member 306 tries to move away from the terminal fitting 24a, but the plate-like member 306 and the terminal fitting operate integrally because they are held by the support member 305. Therefore, the movable element of the actuator also moves in the opening direction, and the movable side electrode of the blocking part also moves in the opening direction.
  • the spindle 307 is advanced by rotating the handle 309 in reverse from the opening operation, so that the plate-like member 306 comes into contact with the terminal fitting 24a and the mover 23 is moved. Moves in the closing direction. As the mover 23 moves in the closing direction, the movable side electrode of the blocking portion also moves in the closing direction.
  • a mover connecting part may be provided and the spindle may be connected to the mover connecting part.
  • a mechanical opening / closing means such as a spindle is provided in the gap by providing a gap similar to the above in the mover itself or a member connected to the mover. Just connect.
  • steering-wheel shape were circular shape, it cannot be overemphasized that it may be set as another shape.
  • a mechanical opening / closing means such as a spindle may be connected so as to be operable.
  • a mechanical opening / closing means such as a spindle is rotatably supported.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

La présente invention a pour objectif de résoudre le problème de la mise à disposition d'un disjoncteur à gaz qui améliore la fiabilité. Pour ce faire, la présente invention concerne un disjoncteur à gaz comprenant : un contact fixe ; un contact mobile, qui vient en contact avec le contact fixe, ou s'ouvre par rapport à ce dernier ; un réservoir isolant, dont l'intérieur contient le contact fixe et le contact mobile, et qui est scellé à l'aide d'un gaz isolant ; et un actionneur qui génère une force d'excitation servant à faire fonctionner le contact mobile. Le disjoncteur à gaz est caractérisé en ce que l'actionneur comprend : un élément mobile, dans lequel des aimants permanents ou des corps magnétiques sont agencés dans la direction dans laquelle la force d'excitation d'actionneur est générée ; et des pôles magnétiques, qui sont positionnés en faisant face à l'élément mobile, et qui comportent des enroulements.
PCT/JP2013/058897 2012-04-06 2013-03-27 Disjoncteur à gaz WO2013150929A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2014509116A JP5775966B2 (ja) 2012-04-06 2013-03-27 ガス遮断器
KR1020147027868A KR20140138840A (ko) 2012-04-06 2013-03-27 가스 차단기
CN201380018100.0A CN104205280A (zh) 2012-04-06 2013-03-27 气体断路器
US14/390,594 US20150091677A1 (en) 2012-04-06 2013-03-27 Gas Circuit Breaker
EP13771948.0A EP2835811A4 (fr) 2012-04-06 2013-03-27 Disjoncteur à gaz

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012086995 2012-04-06
JP2012-086995 2012-04-06

Publications (1)

Publication Number Publication Date
WO2013150929A1 true WO2013150929A1 (fr) 2013-10-10

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PCT/JP2013/058897 WO2013150929A1 (fr) 2012-04-06 2013-03-27 Disjoncteur à gaz

Country Status (6)

Country Link
US (1) US20150091677A1 (fr)
EP (1) EP2835811A4 (fr)
JP (1) JP5775966B2 (fr)
KR (1) KR20140138840A (fr)
CN (1) CN104205280A (fr)
WO (1) WO2013150929A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015064296A1 (fr) * 2013-11-01 2015-05-07 株式会社日立製作所 Appareillage de commutation
WO2015072003A1 (fr) * 2013-11-15 2015-05-21 株式会社日立製作所 Disjoncteur à gaz
WO2016021281A1 (fr) * 2014-08-08 2016-02-11 株式会社日立製作所 Moteur linéaire et disjoncteur dans lequel celui-ci est utilisé
JP2016167405A (ja) * 2015-03-10 2016-09-15 株式会社日立製作所 開閉装置
JP2021518649A (ja) * 2018-03-23 2021-08-02 エトナ インダストリーＥｔｎａ Ｉｎｄｕｓｔｒｉｅ 高電圧電気設備遮断器用の電気機械式アクチュエータ

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013150930A1 (fr) * 2012-04-06 2013-10-10 株式会社 日立製作所 Disjoncteur, et procédé de fonctionnement de disjoncteur
JP2014107179A (ja) * 2012-11-29 2014-06-09 Hitachi Ltd 三相一括式遮断器
DE102015218443A1 (de) 2015-09-25 2017-03-30 Siemens Aktiengesellschaft Antrieb und Verfahren zum Antreiben eines Leistungsschalters
US10340096B2 (en) * 2017-05-19 2019-07-02 Mitsubishi Electric Power Products, Inc. System and method for air motor recharging of spring mechanisms

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58140928A (ja) * 1982-02-15 1983-08-20 三菱電機株式会社 リニアモ−タ式断路器
JPH0589755A (ja) * 1991-09-26 1993-04-09 Toshiba Corp 圧縮ガス遮断器
JPH097468A (ja) * 1995-06-16 1997-01-10 Mitsubishi Electric Corp 開閉装置
JPH10308145A (ja) * 1997-05-01 1998-11-17 Mitsubishi Electric Corp 開閉装置
JP2004088825A (ja) * 2002-08-23 2004-03-18 Hitachi Ltd ガス絶縁開閉装置
JP2004288502A (ja) * 2003-03-24 2004-10-14 Mitsubishi Electric Corp 操作回路およびこれを用いた電力用開閉装置
JP2007523475A (ja) 2004-02-11 2007-08-16 ソウル ナショナル ユニバーシティー インダストリー ファウンデーション 電磁気力を用いたアクチュエータ及びそれを用いた遮断器
JP2010141978A (ja) 2008-12-10 2010-06-24 Hitachi Ltd 推力発生機構
JP2010239724A (ja) 2009-03-31 2010-10-21 Hitachi Ltd 駆動装置，ｘｙステージ及びｘｙｚステージ

Family Cites Families (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5732451B2 (fr) * 1974-01-16 1982-07-10
CH612293A5 (fr) * 1977-04-29 1979-07-13 Bbc Brown Boveri & Cie
US4161711A (en) * 1978-05-24 1979-07-17 S & C Electric Company Circuit interrupting device
DE2943386A1 (de) * 1978-10-26 1980-04-30 Tokyo Shibaura Electric Co Puffer-gasschutz- bzw. -leistungsschalter
US4465910A (en) * 1982-09-20 1984-08-14 Mcgraw-Edison Company Self-generating gas flow interrupter
JP2521353B2 (ja) * 1989-06-30 1996-08-07 株式会社日立製作所 ガス遮断器
US5079391A (en) * 1989-11-11 1992-01-07 Hitachi, Ltd. Puffer type gas circuit breaker, contact cover and insulated nozzle of the breaker
JPH03171521A (ja) * 1989-11-29 1991-07-25 Hitachi Ltd ガス遮断器
KR910014970A (ko) * 1990-01-08 1991-08-31 미다 가쓰시게 가스 차단기
JP2771305B2 (ja) * 1990-03-13 1998-07-02 株式会社日立製作所 ガス遮断器
JPH03269924A (ja) * 1990-03-19 1991-12-02 Hitachi Ltd ガス遮断器
DE19837009A1 (de) * 1998-08-14 2000-02-17 Abb Patent Gmbh Antrieb für das bewegliche Kontaktstück eines Hochspannungsleistungsschalters
DE19848551A1 (de) * 1998-10-21 2000-04-27 Abb Patent Gmbh Antrieb für das bewegliche Kontaktstück eines elektrischen Schalters
DE19929572A1 (de) * 1999-06-22 2001-01-04 Siemens Ag Magnetischer Linearantrieb
JP3821101B2 (ja) * 2003-02-04 2006-09-13 株式会社日立製作所 直線駆動装置、その制御方法及びｘｙテーブル
JP3944471B2 (ja) * 2003-07-31 2007-07-11 株式会社日立製作所 駆動装置及びそれを用いたｘｙテーブル
CN101326605B (zh) * 2005-10-25 2011-07-27 埃玛泰克株式会社 电磁力驱动致动器以及使用该致动器的断路器
CN200972840Y (zh) * 2006-10-30 2007-11-07 沈阳工业大学 一种高压断路器直线电机操动机构
WO2010067837A1 (fr) * 2008-12-10 2010-06-17 株式会社日立製作所 Mécanisme de génération de poussée, dispositif de commande, étage xy et étage xyz
JP5313333B2 (ja) * 2009-03-13 2013-10-09 株式会社日立製作所 リニアモータ
JP5477126B2 (ja) * 2010-04-07 2014-04-23 日立金属株式会社 リニアモータ
JP5655071B2 (ja) * 2010-06-08 2015-01-14 株式会社日立製作所 リニアモータ
WO2011154995A1 (fr) * 2010-06-09 2011-12-15 株式会社 日立製作所 Moteur linéaire et dispositif de positionnement utilisant ce moteur
JP5796576B2 (ja) * 2010-06-09 2015-10-21 株式会社日立製作所 発電機およびそれを用いた発電装置
WO2013118348A1 (fr) * 2012-02-06 2013-08-15 三菱電機株式会社 Disjoncteur à gaz
CN104081637B (zh) * 2012-02-20 2017-06-16 株式会社日立制作所 线性电动机
WO2013150930A1 (fr) * 2012-04-06 2013-10-10 株式会社 日立製作所 Disjoncteur, et procédé de fonctionnement de disjoncteur
CN104247184B (zh) * 2012-04-18 2016-07-06 株式会社日立制作所 开闭装置
WO2014064785A1 (fr) * 2012-10-24 2014-05-01 株式会社日立製作所 Moteur linéaire, et système d'entraînement de celui-ci
JP2014107180A (ja) * 2012-11-29 2014-06-09 Hitachi Ltd ガス遮断器

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58140928A (ja) * 1982-02-15 1983-08-20 三菱電機株式会社 リニアモ−タ式断路器
JPH0589755A (ja) * 1991-09-26 1993-04-09 Toshiba Corp 圧縮ガス遮断器
JPH097468A (ja) * 1995-06-16 1997-01-10 Mitsubishi Electric Corp 開閉装置
JPH10308145A (ja) * 1997-05-01 1998-11-17 Mitsubishi Electric Corp 開閉装置
JP2004088825A (ja) * 2002-08-23 2004-03-18 Hitachi Ltd ガス絶縁開閉装置
JP2004288502A (ja) * 2003-03-24 2004-10-14 Mitsubishi Electric Corp 操作回路およびこれを用いた電力用開閉装置
JP2007523475A (ja) 2004-02-11 2007-08-16 ソウル ナショナル ユニバーシティー インダストリー ファウンデーション 電磁気力を用いたアクチュエータ及びそれを用いた遮断器
JP2010141978A (ja) 2008-12-10 2010-06-24 Hitachi Ltd 推力発生機構
JP2010239724A (ja) 2009-03-31 2010-10-21 Hitachi Ltd 駆動装置，ｘｙステージ及びｘｙｚステージ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2835811A4

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015064296A1 (fr) * 2013-11-01 2015-05-07 株式会社日立製作所 Appareillage de commutation
JP2015088399A (ja) * 2013-11-01 2015-05-07 株式会社日立製作所 開閉装置
TWI569298B (zh) * 2013-11-01 2017-02-01 Hitachi Ltd Opening and closing device
US9673005B2 (en) 2013-11-01 2017-06-06 Hitachi, Ltd. Switchgear
WO2015072003A1 (fr) * 2013-11-15 2015-05-21 株式会社日立製作所 Disjoncteur à gaz
WO2016021281A1 (fr) * 2014-08-08 2016-02-11 株式会社日立製作所 Moteur linéaire et disjoncteur dans lequel celui-ci est utilisé
JP2016039713A (ja) * 2014-08-08 2016-03-22 株式会社日立製作所 リニアモータ及びそれを用いた遮断器
JP2016167405A (ja) * 2015-03-10 2016-09-15 株式会社日立製作所 開閉装置
JP2021518649A (ja) * 2018-03-23 2021-08-02 エトナ インダストリーＥｔｎａ Ｉｎｄｕｓｔｒｉｅ 高電圧電気設備遮断器用の電気機械式アクチュエータ

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JP5775966B2 (ja) 2015-09-09
CN104205280A (zh) 2014-12-10
KR20140138840A (ko) 2014-12-04
EP2835811A1 (fr) 2015-02-11
US20150091677A1 (en) 2015-04-02
EP2835811A4 (fr) 2015-12-16
JPWO2013150929A1 (ja) 2015-12-17

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